16444026 has 32 divisors (see below), whose sum is σ = 37065600. Its totient is φ = 5402880.

The previous prime is 16444019. The next prime is 16444033. The reversal of 16444026 is 62044461.

It is an interprime number because it is at equal distance from previous prime (16444019) and next prime (16444033).

It is a super-3 number, since 3×16444026³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1690 + ... + 5978.

It is an arithmetic number, because the mean of its divisors is an integer number (1158300).

Almost surely, 2^16444026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16444026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18532800).

16444026 is an abundant number, since it is smaller than the sum of its proper divisors (20621574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16444026 is a wasteful number, since it uses less digits than its factorization.

16444026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371 (or 4365 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 16444026 is about 4055.1234259884. The cubic root of 16444026 is about 254.2939639084.

Adding to 16444026 its reverse (62044461), we get a palindrome (78488487).

The spelling of 16444026 in words is "sixteen million, four hundred forty-four thousand, twenty-six".